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Implementing a Scalable Parallel Reduction in Unified Parallel C (part 2) Community Blog
NancyWang
Tags:
parallel_computing
reduction
cppcafe
upc
parallel_programming
upc_forall
parallel
parallel_performance
1 Comment
4,520 Views
continue from the previous parallel reduction blog The result is obvious wrong, but what is the problem? The keen reader might point out that the program as written contains a race condition. Multiple threads can write into shared variable "sum" concurrently,...
from Blog: C/C++ Cafe


IBM auf dem Mobile World Congress 2010 Community Blog
dwmigration2
Tags:
barcelona
communications
cost
enablement
smarter
mwc10
reduction
service
mobile
customer
ibm
mwc
experience
1 Comment
1,387 Views
Heute startet der Mobile World Congress 2010  eine der wichtigsten Veranstaltungen �berhaupt im Umfeld mobiler L�sungen. Es werden wohl wieder einige interessante neue Dienste und Ger�te vorgestellt. So hat zum Beispiel� Samsung gestern abend �sein mit...
from Blog: Blue Blog


Implementing a Scalable Parallel Reduction in Unified Parallel C Community Blog
NancyWang
Tags:
cppcafe
upc_programming
parallel
upc_forall
parallel_performance
reduction
parallel_computing
upc
4,937 Views
A reduction is the process of combining elements of a vector (or array) to yield a single aggregate element. It is commonly used in scientific computations. For instance the inner product of two ndimensional vectors x, y is given by: This computation requires...
from Blog: C/C++ Cafe


Implementing a Scalable Parallel Reduction in Unified Parallel C (part 3) Community Blog
NancyWang
Tags:
parallel
reduction
upc
upc_forall
cppcafe
parallel_computing
parallel_performance
parallel_programming
3,596 Views
continue from the second parallel reduction blog . To get better scalability (increased program performance as the number of threads increases), it is critical to remove the lock in the upc_forall loop. This can be done by accumulating the partial sum...
from Blog: C/C++ Cafe


Analytical storage planning reduces procurement costs
A very useful method is the analytical storage planning based on measurement data. In the following example, the MS Exchangearea of a company was analyzed to determine the required supply power. see attached picture Fig 2: measured values allow a very precise...
from Blog: The BVQ Blog


OpenMP 4.0 about to be released and IWOMP 2013 Community Blog
Michael_Wong
Tags:
reduction
atomics
2003
tasks
iwomp
tools
4.0
defined
error
fortran
simd
user
model
2013
accelerators
openmp
10,850 Views
So much has been happening in OpenMP since SC 12 that I hope to capture it all in this post while flying to the ADC C++ meeting where I will talk about C++14, ISOCPP.org, and Transactional Memory. First, the research arm of OpenMP is IWOMP, the annual...
from Blog: C/C++ Cafe
Modified on by Michael_Wong
